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Stock Based Compensation (Tables) | 6 Months Ended
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Jun. 30, 2018
Restricted Stock |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Schedule of Nonvested Restricted Stock Activity | A summary of the activity of the Company's non-vested restricted stock collectively under the 2010 Plan and 2017 Plan for the six months ended June 30, 2018 and 2017, respectively, is presented below:
| 2018 |  | 2017
| Number of Non-vested Restricted Shares |  | Weighted Average Per Share Grant Date Fair Value (1) |  | Number of Non-vested Restricted Shares |  | Weighted Average Per Share Grant Date Fair Value (1)
Non-vested shares at January 1 | 422,928 |  |  | $ | 6.36 |  |  | 319,058 |  |  | $ | 6.40 |
Granted | 206,597 |  |  | 5.57 |  |  | 332,921 |  |  | 6.54 |
Vested | (200,064 | ) |  | 6.55 |  |  | (150,209 | ) |  | 6.74 |
Forfeited | (5,120 | ) |  | 6.25 |  |  | — |  |  | — |
Non-vested shares as of June 30 | 424,341 |  |  | 5.90 |  |  | 501,770 |  |  | 6.39 |
Weighted-average of restricted stock granted during the period | 206,597 |  |  | $ | 5.57 |  |  | 332,921 |  |  | $ | 6.54 |
(1) | The grant date fair value of restricted stock awards is based on the closing market price of the Company’s common stock at the grant date.

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- Definition Tabular disclosure of the changes in outstanding nonvested shares. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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